Microsoft hides file extensions in Windows by default even though it's a security risk that is commonly abused by phishing emails and malware distributors to trick people into opening malicious files.

You can create a file without a File Type Extension in Windows 11/10 by carefully following the steps laid down in this post.

In iOS 16.0 and later, you can make Apple's stock Files app display file extensions for items in the currently viewed folder. Keep reading to learn how it's done. The only issue until recently was ...

What does double extension actually mean? Find out inside PCMag's comprehensive tech and computer-related encyclopedia.

BearPup sometimes wants to open a file in one program, and other times open it in another. He asked the Answer Line forum for an easy way to do this.